Multi channel car amps are best suited for higher performance sound systems and vehicles with significant amounts of after market accessories. A higher performance sound system usually includes mid-to-high range speakers. High range speakers can include all forms of automotive speakers, such as subs, tweeters, door speakers and anything else installed in a vehicle. Additional after market accessories can include ground effects, lights, amp accessories and others. If you’re considering a large sound system with a variety of high range speakers, you need to include a multi channel car amp to ensure your sound system will work properly and to avoid damage to your speakers.